Show-case-lighting device.



R. B. BENJAMIN. SHOW CASE LIGHTING DEVlCE.

APPLHIATION FILED NOV. 15. I915.

Patented May 21,1918.

srnrn rare REUBEN B. BENJAMIN, OF CHICAGO, ILLINOIS, ASSIGNOR T BENJAMIN'JELECTRIC" MANUFACTURING COMPANY, OF CHICAGO, ILLINOIS, A CORPORATIONOF ILLINOIS.

-SHOW-CASE-L1GH'IING nnvrcn.

Specification of Letters Patent.

Patented May er, rare.

Application filed. November 15, 1915; Serial No. create.

To all whom it may camera:

Fig. 2;

trough Be it known that I REUBEN B. BENJAMIN, a citizen of the Un tedStates, residing at Chicago, in the county of Cook and State ofIllinois, have invented new and useful Improvements inShow-Case-lLight1ng Devices, of which the following is a full, clear,concise, and exact description, reference being had to the accompanyingdrawing, form ing a part of this specification.

My invention relates to show case llghtlng devices.

One of the objects of my invention is to provide an improved device ofthis character which is made in sections and which can be quicklyattached and detached to make a fixture of anylength desired. 7

In the drawings, in which I have shown one embodiment of my invention-Figure 1 is a section throu h a show case showing my improved lightlngdevice located therein;

Fig. 2 is a section of Fig. 1;

on the line 2-2 line 3 3 line 44 line 55 line 6-6 line 7-7 Fig. 3 is asection on the Fig. 2;

Fig. 4 is a section Fig. 3;

Fig. 5 is a section Fig. 2;

Fig. 6 is a section on the on the on the Fig. 7 is a section on the Fig.1; and I Fig. 8 is a section on the line 8--8 Fi 1.

Fteferring now to the drawings in detail, the device as shown comprisesa plurality of similar sections 10 electrically and mechanicallyconnected together end to end and located in any suitable positionwithin the show case. Each section 10 comprises a 11 within which thelamps are 10- cate reflector members 12 located within the trough 11,two receptacles 13 one at each end of the trough 11, electricalconnectlons 14 for supplying current to the receptacles 13, two lampsockets 15 one supported by and engaging each of the receptacles 13, andtubular lamps 16 and 17 lying in the trough 11 and inserted in thesockets 15.

The trough 11 comprises an elongated ceptacles 13 are secured. Thesecaps are secured to the channel members 18 in any suitable manner as byrivets 21. For holding the electrical connections 14 in, their properofthe channel members 18 to which the rechannel member 22 by means of aneyelet 24.

The receptacle 13 comprises base 25 secured to the cap 20 by means ofeyelets 26, spring contacts 27 for engagement with correspondingcontacts on the lamp socket 15, said contacts being located aninsulating 1n recesses 28 in the insulating base, terminal plates 29 towhich the electrical connections 14 are soldered, screws 30 forelectrically and mechanically connecting the plates 29 with the bindingplates 31, and lolIldlIlg" screws 32 for engagement with the 'leadinginwires. Only one of the insulating bases 25 of the entire fixture isprovided with the binding screws 32. In the other bases the bindingplates 31 serve as part of the mechanical and electrical connectionsbetween the sections 10 and forthis purpose connecting and conductingscrews 33 are provided (Fig. 6) having a threaded end 33 and a reducedshank portion 33 which is provided so that it will not be necessary tothread the screw through the plate 31 through which it is first insertedfor its entire length before it can engage the second plate 31.

The base 25 is provided with suitable channels 34 for the leadinginwires 35 and is suitably recessed at 36 to accommodate the connections-14. The connections 14 comprise a pair of insulating conductors 37 theends of which are secured to the lates 29 in any suitable manner as bysolderlng at 38. The lamp socket 15 comprises an insulating base 39,shell and center contacts 40 and 41 supported by the base 39, eyelets 42for securing the shell contact in place, contact blades 43 for contacts27 of the receptacle, and screws 44 for connecting the shell and centercontacts with the contact blades 43. The spring contacts 27 andassociated parts are so constructed that they will receive the contactblades of the cap of a separable attachment lug if desired.- The fixturemay be secured in the corner of a show case 45 by means of suitableclips 46. Itwill be seen that by the use of these sections 10, alighting device of any desired length may be built up and that thesesections may be very easily mechanically and electrically connected bysimply inserting the screws 33, two for each section after which thesockets may be slipped in place in the receptacles 13.

The connections 14 are made permanently at the factory before shippingand the receptacles 13 are also permanently secured to the caps 20. Whenthe fixture is completely set up and connected the circuit is from oneof the leading in 35 to the binding wires plate 31 through the screw 30to the plate 29, through one of the conductors 37 to the 37 from one ofthe plates 29 through the spring contact 27 engaging the plate 29,through the contact blade 43, screw 424: center, contact l1, 1amcircuit, shell contact 40, screw 44, contact b ade 413, spring contact27 to the other plate 29 and the other conductor 37. The spring contactplates 27 are so located with respect to the trough 11 that the lampwith its socket 15 may be swung ,outwardly from the trough 11 when it'1s de sired to remove the lamp and insert another. Having thusdescribed my invention what I claim as new and desire to secure byLetbase, a conductor plate base adjacent ters Patent is 1. In a deviceof the class described a channel member, means for supporting anelectriclamp within said channel, said means including an insulating baseadjacent one end of said channel, a second channel mem ber, means forsupportin an electric lamp therein, said means inclu ing ah insulatingone end of said channel, and common means for mechanically connectingsaid channels together end to end forming a unitary structure and forelectrically connecting the circuits of said lamps, said common meansincluding a member extending through both said bases.

2. In a device of the class described a channel member, an insulatingbase support-- ed therein, a binding plate supported by said alsosupported by said base, a conductor electrically connected to saidconductor plate, a connecting member electrically and mechanicallyconnectin said plates, and a contact member clamped between said baseand conductor plate.

3. In a device of the class described two channel members placedtogether end to end, two insulating bases one in each .channel callyducting means member, two conductors one. for each channel, twoconductor plates one for each couductor supported by said bases,respectively, two other plates one'supported by each base, a connectingmember electrical y and mechanically connecting said last two plates,and two connecting members one for each base for electrically andmechanically connecting the plates supported by each base.

4. In a device of the character described, two channel reflector membersarranged end to end, four insulating bases, one at each end of eachmember, conducting means carried by each member extending between theinsulating bases, and a member of conducting material extending throughtwoadjacent bases, one in each member, for connecting said memberstogether and electriconnecting said conducting means.

5. In a device of the character described, two channel reflector membersarranged end to end, four insulatin bases, one at each end'of eachmember, our conducting plates, one carried by each base, conductingmeans carried by each member electricallyconnecting the conductingplates, and a member of conducting material mechanically andelectrically connecting two adjacent plates, one in each member.

6. In a device of the character described,

two channel reflector members arranged end to end, four insulatingbases, one at each end of each member, four conducting plates,

' one carried by each base, conducting means carried by each memberelectrically connect- 1 ing the conducting plates, and a member ofconducting material extending through two adjacent bases, one in eachmember, mechanically and electrically connecting two of said plates, onein each member.

7. In a device of the class described, two sheet metal channel membersarranged end to end, four insulating bases, one securedl ateach end ofeach member, four lamp sockets, one detachably secured to each base,conducting means electrically connecting the; sockets of each channelmember, and means for mechanically connectin together two adjacentbases, one in each cliannel, to form a unitary structure.

8. In a device of the class. described, two sheet metal channel membersarranged end to end, four insulating bases, one secured at each end ofeach member, four lamp sockets, one detachably secured to each base,conelectrically connecting the sockets of each channel member, andcommon means for mechanically connecting together two adjacent bases,one in each channel, to form a unitary structure, and for electricallyconnecting two of said sockets, one in each channel.

9. In a device of the character described, a channel reflector memberarranged end to end, two insulating bases, one adjacent each memos endof said channel, two lamp receptacles, one supported by each base, eachreceptacle comprising center and side contacts for the lamp, and twoconductors extending along said channel member for electricallyconnecting the contacts of one receptacle with the contacts of theother, each lamp receptacle having a -'quickly detachable connectionwith its base. 7 10. In a device of the character described,

a channel reflector member, two insulating bases, one ad acent each endof sa1d channel, two lamp receptacles, one supported by a each base,each receptacle-comprising center and sidecontacts for the lamp, twoconductors extending along said channel member for electricallyconnecting the contacts of 7 one receptacle with the contacts of theother,

a second channel member, two insulating. bases, one ad acent each end ofsa1d second 1 with the contacts of the other, and means" formechanically connectin said channel members together end to en to form auni-- tary structure and for electrically connecting the conduetors ofone channel with the conductors of the other. f

11. In a device of the character described,

a channel reflector member, two insulating bases, one adjacent each endof said channel, two lam receptacles, onesupported by each base, eachreceptacle comprising censcribed name. J

will:

ter and side contacts for the lamp, two conductors extending along saidchannel member for electrically connecting the contacts of onereceptacle with thecontacts ot the other, a second channel member, twoinsulating bases, one adjacent each end of said second channel member,two lamp reiceptaeles, one' supported by each base, each receptaclecomprising center and side conreceptacle with the contacts of the other,

and common means for mechanically connecting said channel memberstogether end tacts forengaging the lamp, two conductors extending alongsa1d channel member forelectrlcally connecting the contacts of one Y toend'to form a unitary structure and for electrical-1y connecting theconductors of 'onechannel with the conductors of the 12. 'In a device ofthe class'described, an elongated channel reflector mem'ber,an insulating base securedgin fixed position with respect thereto, and a lampreceptacle havand center contacts, and positioned to hold the lamp withits axissubstantiallyparal ,lel to the axis of the elon ated channel ta1 ing aquickly detachable connection with." saidinsulating-base, andprovided with side member,- said quickly detacha le connection beingconstructed so that the lamp with its socket may be moved outwardly fromthe channel member by .a swinging'movement with respect to saidinsulating aser In witness whereof, l have hereunto sub-,

nnunnit is. new

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